Fuel-briquet composition.



Ho Iirawing.

4 owing positions and has UNITED STATES EITENT clarion wrnnram Loreen,

or cnr'caoo; irtinois, gestation or Form: OKE-HUNLBEDTH- "re enoasn 1a. sroana,

or CHICAGO, rtmnors.

raw. 's munr o'orrrosirron. 1

pecification of Letters Iatent.

Patented Sept. 29, 19%

T0 allwhom izfmag concern:

Be'itknown thatfl; IVILLIAM Lonscn,- a citizenof the United States, residing at Chicago; in the county of Cool; and'State of Illinois, have invented certain new and useful Improvements in Fuel-Briquet Comositions; a nd I do hereby declare the foltion' "of tl ie inventiong such tainsto make and use the same. i

'The invention relates to fuel br quet comfor its principal object the proyision of a briquet that will retain its,inte'grity v under the influence of the heat of 1,; c'ombustion; 3 Gn'e of the great draw-backs to the use of briquets of pulverized fuel is that the briquet when subjected to the heat of combustibn-will disintegrate into a fine dust and become. practically non-combustible, whereinmy'improved composition -binder lisprovided to maintain the briquetiii a block until entirely. consumed and fur-' lthermore'Iprovide a small percentage of to add to the conibusti and may :i i f liings' or coke desire-d1 mayuse a part Of the one hunpotassium-nitrate v r fiIn making are one hundred parts by bulk, o such for instance as bituminous coal dust 'hnil'screenings' or anthracite coal dust and a sufficient 1 :character of the briquet. v

dust and screenings, or

dred parts by bulk of bituminous 'coal dust end-screenings and the remainderjof anthracite coal dust and screenings,

I, V I then taketwenty five parts, by bulk, of cement and mix with this twentyfive iparts of water, substantially one-ha f of one part, bulk, of potassium ni'trate, thoroughly dissolving the salt in the water. I then take. five parts, by bulk, of ordinary clay-that has been finely comminuted and mix it with; twenty-five '(25) parts by bulk, {of l cement, either Portland 'or slag, while dry and'then mix nitrate'heretofore described with the clay and cement unt'l thoroughly incorporated and making a substantially liquid solution. The one hundred (100) parts by bulk of fuel dust heretoi re described is then mixed with the solutionof water, clay, cement and'potassium nitrate vuntil thoroughly incorpoto he a full,-vclear, and exact descri ii h as will enab e :others skilled in the art to which it apperthe most satisfactory method of mixing the different ingredients, especially the last step heretofore described, is by the use of a conmy improve'd' com osition I fuel dust,':

U or a part of' eachibybulk ofthe-three fuels heretofore 1 mentioned.

the solution of potassiui'n crete mixer of ordinary construction, but the mixing may be accomplished by hand if de" sired.

oughly mixed as heretofore described the is placed in suitable molds of any desired shape and allowed to dry, this drying process requiring substantially three days, though the time may be increased by humidity in the atmosphere.

After the molded briquets have become hardened in the molds and dried thoroughly they are in condition to be utilized for fuel I be treated in the same manner that lump coal is treated for combustion purposes.

i I am aware that briquets have been made heretofore that employ cement and other binding agents to hold the particles of fuel together, but none of the briquets heretofore made have stand the rough usage of handling and transportation and furthermore when placed in the furnace and subjected to the heat of combustion crumble into dust and retard combustion if they do not entirely discontinue it. This integrity of the briquet is secured and maintained by the large percentage of cement in the composition, as well as the clay acting as a binder by being burned into a hard briclelike substance that prevents crumbling and disintegration. Furthermore by reason of the fact that the'briquet does not crumble the particles of fuel are burned away gradually leaving a residue of fine particles of the incombustile matter of ash, and no clinker results from combustion. The addition of the potassium nitrate causes a more rapid ignitiono'f the fu'el dust and screenings without dangerofexpiosion;

coal oil, substanfuel , After the ingredients have been thorbeen of sufficient hardness to which falls through the grates in the formf :plastic composition that results therefrom of one part by bull:

Having thus described my invention What I claim is zl. A fuel briquet composltion consisting of finely coniminuted fuel, a binding agent Copies of this patent may be obtained for five cents each, by Washington, D. 0.

3. A fuelfor briquet compositions containing substantially one hundred (100) parts by bulk of finely comminuted fuel, substan tially two (2) parts by bulk of coal oil,

substantially twenty-five (25) parts by bulk of cement, substantially five (5) parts by bulk of finely comminuted clay, substantially one-half (g) of one part by bulkv of potassium nitrate, and substantially twentyfive (.25) parts by bulk of Water.

In testimony whereof I aflix my Signature presence of two Witnesses.

WILLIAM LOESGH.

lVitnessesi GEORGE B. STORER,

JOHN H. FOLEY.

addressing the Commissioner of Patents, 

